From: Matt Fleming <matt.fleming@intel.com>
Date: Tue, 5 Mar 2013 12:46:30 +0000 (+0000)
Subject: efivarfs: return accurate error code in efivarfs_fill_super()
X-Git-Tag: v3.9-rc2~14^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=feff5dc4f98330d8152b521acc2e18c16712e6c8;p=pandora-kernel.git

efivarfs: return accurate error code in efivarfs_fill_super()

Joseph was hitting a failure case when mounting efivarfs which
resulted in an incorrect error message,

  $ sudo mount -v /sys/firmware/efi/efivars mount: Cannot allocate memory

triggered when efivarfs_valid_name() returned -EINVAL.

Make sure we pass accurate return values up the stack if
efivarfs_fill_super() fails to build inodes for EFI variables.

Reported-by: Joseph Yasi <joe.yasi@gmail.com>
Reported-by: Lingzhu Xiang <lxiang@redhat.com>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: <stable@vger.kernel.org> # v3.8
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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